Fix Style/FrozenStringLiteralComment violations in rubocop

Auto-corrected with Rubocop

.rubocop_manual_todo.yml

@@ -2505,26 +2505,6 @@ Style/FrozenStringLiteralComment:
     - 'qa/qa/fixtures/auto_devops_rack/Rakefile'
     - 'qa/qa/fixtures/auto_devops_rack/config.ru'
     - 'qa/qa/page/page_concern.rb'
-    - 'rubocop/cop/avoid_keyword_arguments_in_sidekiq_workers.rb'
-    - 'rubocop/cop/gitlab/finder_with_find_by.rb'
-    - 'rubocop/cop/gitlab/keys-first-and-values-first.rb'
-    - 'rubocop/cop/gitlab/module_with_instance_variables.rb'
-    - 'rubocop/cop/gitlab/predicate_memoization.rb'
-    - 'rubocop/cop/migration/add_concurrent_foreign_key.rb'
-    - 'rubocop/cop/migration/add_concurrent_index.rb'
-    - 'rubocop/cop/migration/add_index.rb'
-    - 'rubocop/cop/migration/add_timestamps.rb'
-    - 'rubocop/cop/migration/datetime.rb'
-    - 'rubocop/cop/migration/hash_index.rb'
-    - 'rubocop/cop/migration/remove_column.rb'
-    - 'rubocop/cop/migration/remove_concurrent_index.rb'
-    - 'rubocop/cop/migration/remove_index.rb'
-    - 'rubocop/cop/migration/safer_boolean_column.rb'
-    - 'rubocop/cop/migration/timestamps.rb'
-    - 'rubocop/cop/migration/update_column_in_batches.rb'
-    - 'rubocop/cop/project_path_helper.rb'
-    - 'rubocop/migration_helpers.rb'
-    - 'rubocop/qa_helpers.rb'
     - 'scripts/flaky_examples/detect-new-flaky-examples'
     - 'scripts/flaky_examples/prune-old-flaky-examples'
     - 'scripts/gather-test-memory-data'

rubocop/cop/avoid_keyword_arguments_in_sidekiq_workers.rb

+# frozen_string_literal: true
+
 module RuboCop
   module Cop
     # Cop that blacklists keyword arguments usage in Sidekiq workers

rubocop/cop/gitlab/finder_with_find_by.rb

+# frozen_string_literal: true
+
 module RuboCop
   module Cop
     module Gitlab

rubocop/cop/gitlab/keys-first-and-values-first.rb

+# frozen_string_literal: true
+
 module RuboCop
   module Cop
     module Gitlab

rubocop/cop/migration/add_concurrent_foreign_key.rb

+# frozen_string_literal: true
+
 require_relative '../../migration_helpers'
 
 module RuboCop

rubocop/cop/migration/add_concurrent_index.rb

+# frozen_string_literal: true
+
 require_relative '../../migration_helpers'
 
 module RuboCop

rubocop/cop/migration/add_index.rb

+# frozen_string_literal: true
+
 require_relative '../../migration_helpers'
 
 module RuboCop

rubocop/cop/migration/add_timestamps.rb

+# frozen_string_literal: true
+
 require_relative '../../migration_helpers'
 
 module RuboCop

rubocop/cop/migration/datetime.rb

+# frozen_string_literal: true
+
 require_relative '../../migration_helpers'
 
 module RuboCop

rubocop/cop/migration/hash_index.rb

+# frozen_string_literal: true
+
 require 'set'
 require_relative '../../migration_helpers'
 

rubocop/cop/migration/remove_column.rb

+# frozen_string_literal: true
+
 require_relative '../../migration_helpers'
 
 module RuboCop

rubocop/cop/migration/remove_concurrent_index.rb

+# frozen_string_literal: true
+
 require_relative '../../migration_helpers'
 
 module RuboCop

rubocop/cop/migration/remove_index.rb

+# frozen_string_literal: true
+
 require_relative '../../migration_helpers'
 
 module RuboCop

rubocop/cop/migration/safer_boolean_column.rb

+# frozen_string_literal: true
+
 require_relative '../../migration_helpers'
 
 module RuboCop

rubocop/cop/migration/timestamps.rb

+# frozen_string_literal: true
+
 require_relative '../../migration_helpers'
 
 module RuboCop

rubocop/cop/migration/update_column_in_batches.rb

+# frozen_string_literal: true
+
 require_relative '../../migration_helpers'
 
 module RuboCop

rubocop/cop/project_path_helper.rb

+# frozen_string_literal: true
+
 module RuboCop
   module Cop
     class ProjectPathHelper < RuboCop::Cop::Cop

rubocop/migration_helpers.rb

+# frozen_string_literal: true
+
 module RuboCop
   # Module containing helper methods for writing migration cops.
   module MigrationHelpers

rubocop/qa_helpers.rb

+# frozen_string_literal: true
+
 module RuboCop
   # Module containing helper methods for writing QA cops.
   module QAHelpers